Which subfield of psychology would most likely promote research identifying the psychological, biological, and social factors that encourage good eating habits?

Health psychology

Explanation: Health psychology is a study intended at employing a psychological approach in the study, prevention and management of a person's physical health and well being. Health psychology is aimed at understanding how biological, psychological, social, behavioral and cultural factors contributes to a person physical health and disorder

In summary, health psychology encourages consumption of nutrients rich meals, smoking cessation, Regular exercise, good eating habit, good stress management and other contributing factors to good physical health.

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.

answer; collective security;